Model Comparison

Claude 3 Sonnet vs Phi-3.5-vision-instructWhich is better in 2026?

Comparing Claude 3 Sonnet and Phi-3.5-vision-instruct across benchmarks, pricing, and capabilities.

Verdict: Claude 3 Sonnet vs Phi-3.5-vision-instruct — which is better?

Claude 3 Sonnet (by Anthropic) and Phi-3.5-vision-instruct (by Microsoft) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Choose Claude 3 Sonnet if…

  • you want predictable pricing at $3.00/M input and $15.00/M output

Choose Phi-3.5-vision-instruct if…

  • you want the most recent training data — it shipped Aug 2024
  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Claude 3 Sonnet and Phi-3.5-vision-instructdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude 3 Sonnet specifies input context (200,000 tokens). Only Claude 3 Sonnet specifies output context (200,000 tokens).

Anthropic
Claude 3 Sonnet
Input200,000 tokens
Output200,000 tokens
Microsoft
Phi-3.5-vision-instruct
Input- tokens
Output- tokens
Fri Jun 19 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3 Sonnet and Phi-3.5-vision-instruct support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude 3 Sonnet

Text
Images
Audio
Video

Phi-3.5-vision-instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3 Sonnet is licensed under a proprietary license, while Phi-3.5-vision-instruct uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

Claude 3 Sonnet

Proprietary

Closed source

Phi-3.5-vision-instruct

MIT

Open weights

Release Timeline

When each model was launched

Claude 3 Sonnet was released on 2024-02-29, while Phi-3.5-vision-instruct was released on 2024-08-23.

Phi-3.5-vision-instruct is 6 months newer than Claude 3 Sonnet.

Claude 3 Sonnet

Feb 29, 2024

2.3 years ago

Phi-3.5-vision-instruct

Aug 23, 2024

1.8 years ago

5mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Microsoft
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Sonnet
Microsoft
Phi-3.5-vision-instruct

FAQ

Common questions about Claude 3 Sonnet vs Phi-3.5-vision-instruct.

Which is better, Claude 3 Sonnet or Phi-3.5-vision-instruct?

Claude 3 Sonnet (Anthropic) and Phi-3.5-vision-instruct (Microsoft) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude 3 Sonnet compare to Phi-3.5-vision-instruct in benchmarks?

Claude 3 Sonnet scores ARC-C: 93.2%, GSM8k: 92.3%, HellaSwag: 89.0%, MGSM: 83.5%, BIG-Bench Hard: 82.9%. Phi-3.5-vision-instruct scores ScienceQA: 91.3%, POPE: 86.1%, MMBench: 81.9%, ChartQA: 81.8%, AI2D: 78.1%.

What are the context window sizes for Claude 3 Sonnet and Phi-3.5-vision-instruct?

Claude 3 Sonnet supports 200K tokens and Phi-3.5-vision-instruct supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude 3 Sonnet and Phi-3.5-vision-instruct?

Key differences include licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude 3 Sonnet and Phi-3.5-vision-instruct?

Claude 3 Sonnet is developed by Anthropic and Phi-3.5-vision-instruct is developed by Microsoft.

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